Isaac mott



HW l

NA PEERS. FHOTO-UTHOGRAPHEH, WASHINGTON D C UNITED STATES PATENT OFFICE.

ISAAC MOTT, OF GLENS FALLS, NEW YORK.

LAYING sLATE Roer.

Specification of Letters Patent No. 27,822, dated April 10, 1860.

To all whom t may concern:

Be it known that I, ISAAC Mo'rr, of Glens Falls, in the county of IVarren and State of New York, have invented a new and Improved Mode of Laying Roofing-Slates; and I do hereby declare that the following is a full and eXact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon.

To enable others skilled in the art of laying roofing slates in my improved manner, I will proceed to describe the method of laying said slates, reference being had to the accompanying drawings in which- Figure l, is a perspective View of the roof when finished. Fig. 2 is a sectional view of the relative position of the different pieces of slate as the workvof laying progresses. Fig. 3, represents a single rectangular slate showing the relative position of the nail holes.

The nature of my invention consists in so laying rectangular slate on the roofs of houses &c. that the side edges of the first diagonal course shall over and under lap one another about one third their width and the lower edges of a second course overlap the upper edge of the first diagonal course about one third the depth of the slates and the side edges of said second course at the same time over and under lap one another, and so on until the roof is `covered in a manner to expose nearly two thirds of the surface of each slate and present irregular courses, substantially as and for the purposes hereinafter described.

In laying slates in this manner, -I first lay a course of rectangular slates along the lower edge or eaves of the roof, with their lower edges parallel with the edge of the roof as shown in Fig. 2, at l, 2, 3, 4, &c., fastening them to the sheeting by nails as shown at a-ca I next lay a course of slates obliquely, lapping over the first course in such a manner that the lowest corner of the pieces of slate shall just cover the joints between the slates in the first course as shown at 5 6-7-8, &c., Fig. 2, and at the same time the right hand corner of slate 5, shall eX- tend past the left hand corner of slate 6 about three inches, or as much as may be desirable, as shown at A, Fig. 2, not lapping one upon the other, but merely bringing ther edges in contact, and so on in like manner through the entlre course, and `fastening them by nails as shown at b, b Fig. 2. I next lay a second course of slates obliquely, and forming the same angle with the eaves as the course last above described as shown by slates 9-10-11, &c., Fig. 2, in such a manner that the lower left hand edge of slate 9, shall come on the same diagonal line of the lower left hand edge of slate 7, and lap about three inches over the upper right .hand edge of slate 6, and `also lapping about the same distance upon the upper left hand edge of slate 7, (the dotted lines showing the amount that one slate laps upon the other), and this mode of laying the slates is thus continued throughout the course, and all succeeding courses, and is finished at the ridge in the ordinary way.

The advantage of my improvement in laying slates consists in laying rectangular slates obliquely upon the roof in such a manner that it is only necessary to lap the two lower edges of one slate a short distance upon the corresponding upper edges of two of the slates of the next lower course, thereby presenting a larger surface of each slate to the weather than is done by the ordinary way of laying slates, consequently saving a proportional amount of labor and material in covering a roof, and presenting a new, and more beautiful appearance of the roof than ever before attained.

I am aware that slates of hexagonal shape have been laid obliquely, with the shortest sides of the pieces together, lapping the slate upon the upper sides of the pins in the course belowthis I do not claim. I do not claim laying rectangular slate diagonally on the roof when the side edges of the first course join, instead of over and under lapping one another, and the lower edges of the second course overlapping the under edges of the first course about two thirds the depth of the slates, as this arrangement causes a great waste of slate and does not present so handsome an appearance to the eye. Neither do I claim laying hexagonal slate diagonally or obliquely on the roof, as the slater is compelled to use pieces of slate which have all their sides of equal length and then is obliged to expend labor and time chipping off the corners so-as to have them match; and also because with their method of laying slate the edges of the corners run in unbroken lines diagonally across the roof from right to left, and vice-versa, and therefore Whatever View be taken of the roof, it presents regular courses, Which are not so pleasing to the eye; but

What I do claim as my invention and de- 5 sire to secure by Letters Patent, is-

The peculiar method herein described and shown of laying rectangular slate on the roofs of houses ete. for the purposes set forth.

ISAAC MOTT.

Witnesses:

ENOCH H. RosETHAUs, GEORGE G. HAWLEY. 

